NORTH AMERICAN LEPIDOPTERA. 163 



The genus is easily recognized by its small size and lack of all 

 peculiar characters. 



One species occurs in our fauna : 



C'. grotei Hy. Edw., Pa]), ii, 10, Cautethhi; Guudlach, Coiit. Eiit. Cuba, 179, 

 Cautethin ; Edw.,* Entom. Anier. iii, 164. 



noctuiformis X H. S., Ex. Schmett. ii, fig. 55'2, (Enosandra ; Cuba, p. 21, 

 Ginosdiidra ; Grt., Anu. Lye. N. H. viii, 202, Canfethid ; Bd., Sp. Gcu. Het. 

 i, 319, CEnosandra; W. H. Edw., N. Am. Ent. i, 103; Butl., Pap. i, 10."), an 

 sp. dist. noctuiformis Wlk. 



"General color of primaries brown black, with a grayish tint. Basal space 

 blackish, enclosed by a double, indistinct, black Hue. Discal mark velvety black. 

 Posterior double line also black, the inner one bent forward very suddenly to- 

 wards the costa from the subcostal nervure, the outer one nearly straight for its 

 costal half and sharply dentite on the nervures. The submarginal line has a 

 grayish white shade behind it continuing to the edge of the wing, and there is 

 also a blotch of the same color near the centre of the internal margin. Fringes 

 alternRtely black and gray. Secondaries rich, bright orange for the basal two- 

 thirds. Marginal band brown [blackish], moderate in width. Underside 

 brownish, flecked with white scales, the base of the secondaries dull orange 

 along the abdominal margin. Thorax and abdomen grayish, with black scales ; 

 the fifth and seventh segments banded with darker shades as in Macroglossa. 

 Antennae dusky black.'' Expanse 1.30 inches; 33 mm. 



Hah. — Florida. 



The above description is that given by Mr. Edwards, " Papilio" ii, 

 10, and Mr. Edwards adds that he has several examples all constant 

 to the description. A series in the ^luseum collection shows more 

 variation. Some specimens are uniformly gray, the markings as 

 described by Mr. Edwards sharply defined ; others have a dark 

 patch in the space between the outer transverse line and submarginal 

 pale line near the inner margin ; others again have the entire space 

 between these lines blackish as well as the basal space. The ground 

 color differs considerably in tint. 



Prior to 1881 this species had been considered the fEiioaandva 

 noctuiformis of Walker. In " Papilio" i, 105, Mr. Butler savs it 

 " does not agree with AYalker's tyjje from San Domingo, the prima- 

 ries are considerably darkei-, and the dark brown border of the sec- 

 ondaries of only half the width ; it must be distinct." 



Mr. Edwards in describing the species quotes a letter from Mr. 

 Grote, who compared specimens of one form with Walker's type. 

 He says : " I have carefully examined the type of Cautethia noctui- 

 formis Walker. The specimen is unset, and smaller than ours from 

 Florida ; the fore wings very similar, but the hind wings have the 



